3,3-[1,2-ethanediylbis(oxy)]-11β-{4-{1,1-[1,2-ethanediylbis(oxy)]ethyl}phenyl}-5α-hydroxy-17α-(3-hydroxypropyl)-19-norpregn-9-en-20-one 在
对甲苯磺酸 作用下,
以
丙酮 为溶剂,
以27%的产率得到(8S,11R,13S,14S,17R)-17-acetyl-11-(4-acetylphenyl)-17-(3-hydroxypropyl)-13-methyl-1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-3-one